Update README.md

README.md

@@ -34,6 +34,7 @@ The dataset is provided in **Parquet format** and contains the following columns
 | Column Name             | Type                        | Description                                                                 |
 |------------------------|-----------------------------|-----------------------------------------------------------------------------|
 | `chunk_id`             | `str`                       | Unique source based identifier of the chunk                                 |
+| `doc_id`               | `str`                       | Document identifier.                                                        |
 | `types`                | `str`                       | Type(s) of administrative entity.                                           |
 | `name`                 | `str`                       | Name of the organization or service.                                        |
 | `mission_description`  | `str`                       | Description of the entity's mission.                                        |
@@ -65,7 +66,7 @@ The dataset is provided in **Parquet format** and contains the following columns
 
 The following fields were extracted and/or transformed from the original JSON:
 
-- **Basic fields**: `chunk_id`, `name`, `types`, `mission_description`, `additional_information`, `siret`, `siren`, `directory_url`, `modification_date` are directly extracted from JSON attributes.
+- **Basic fields**: `chunk_id`, `doc_id`, `name`, `types`, `mission_description`, `additional_information`, `siret`, `siren`, `directory_url`, `modification_date` are directly extracted from JSON attributes.
 - **Structured lists**:
   - `addresses`: list of dictionaries with `adresse`, `code_postal`, `commune`, `pays`, `longitude`, and `latitude`.
   - `phone_numbers`, `mails`, `urls`, `social_medias`, `mobile_applications`, `contact_forms`: derived from their respective fields with formatting.